HI there,
I would say that you have a refrigerant leak, when the system is to be re charged, it should be fully emptied of old refrigerant and vacuumed down for about 1/2 Hr then let sit for around 5 min and check for any leaks, (loss of vacuum) if this was not done the system may be faulty, have this checked first.
Mark (mhpautos)
Thursday, February 19th, 2009 AT 4:19 AM